eth_getBlockByHash - TRON

Discover 'eth_getBlockByHash' in Tron's JSON-RPC API Interface for efficient block retrieval by hash.

Description

The 'eth_getBlockByHash' Web3 method in the Tron protocol is a crucial part of the JSON-RPC API Interface, designed to efficiently retrieve specific blockchain blocks using their hash. This method is integral for developers needing precise block data, as it returns comprehensive block details, including transactions, timestamp, and miner information. By leveraging the 'eth_getBlockByHash' RPC protocol, developers can enhance their dApps with accurate and timely blockchain data. It's particularly useful for applications requiring validation or analysis of specific transactions within a block. This method ensures a streamlined and reliable way to access blockchain data, contributing to more robust and efficient decentralized applications.

Supported Networks

The eth_getBlockByHash RPC method supports the following network types

• Mainnet

• Testnets

Parameters

Here is the list of parameters eth_getBlockByHash method needs to be executed.

• Block Hash (Required)

  • Type: String

  • Description: The hash of the block you want to retrieve.

  • Supported Values: A valid block hash in hexadecimal format prefixed with "0x".

• Full Transaction Objects (Required)

  • Type: Boolean

  • Description: Determines if the full transaction objects should be returned.

  • Supported Values:

    • true: Returns the full transaction objects.

    • false: Returns only the transaction hashes.

URL

https://go.getblock.io/<ACCESS-TOKEN>/

Here’s a sample cURL request using eth_getBlockByHash

Request

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/jsonrpc' 
--header 'Content-Type: application/json' 
{"jsonrpc": "2.0", "method": "eth_getBlockByHash", "params": ["0x0000000000f9cc56243898cbe88685678855e07f51c5af91322c225ce3693868", false], "id": "getblock.io"}

Response

{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": {
    "baseFeePerGas": "0x0",
    "difficulty": "0x0",
    "extraData": "0x",
    "gasLimit": "0x2faf080",
    "gasUsed": "0x0",
    "hash": "0x0000000000f9cc56243898cbe88685678855e07f51c5af91322c225ce3693868",
    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "miner": "0xa7eca7946715c631d37d37a21bc066a5baacad10",
    "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "nonce": "0x0000000000000000",
    "number": "0xf9cc56",
    "parentHash": "0x0000000000f9cc55565a602811f23df6b987fcf4d4c2b3d68ffa28e426f57276",
    "receiptsRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "sha3Uncles": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "size": "0x18a",
    "stateRoot": "0x",
    "timestamp": "0x60b078d0",
    "totalDifficulty": "0x0",
    "transactions": [
      "0x11adfe477e930beb07a1e452dc4b304b89e1b2ae3e8768a2a3e4b4354d007da2"
    ],
    "transactionsRoot": "0x08bffbd69ce085d3a84afdc88d10ec171b7a39015558f63c41584667ba9a09f6",
    "uncles": []
  }

Body Parameters

Here is the list of body parameters for the eth_getBlockByHash method:

1. baseFeePerGas: The base fee per gas in hexadecimal format (e.g., "0x0").

2. difficulty: The difficulty level of the block in hexadecimal format (e.g., "0x0").

3. extraData: Any extra data included in the block in hexadecimal format (e.g., "0x").

4. gasLimit: The maximum amount of gas allowed in this block in hexadecimal format (e.g., "0x2faf080").

5. gasUsed: The total amount of gas used by all transactions in this block in hexadecimal format (e.g., "0x0").

6. hash: The hash of the block in hexadecimal format (e.g., "0x0000000000f9cc56243898cbe88685678855e07f51c5af91322c225ce3693868").

7. logsBloom: The bloom filter for the logs of this block in hexadecimal format (e.g., a long string of zeros).

8. miner: The address of the miner who mined this block in hexadecimal format (e.g., "0xa7eca7946715c631d37d37a21bc066a5baacad10").

9. mixHash: The mix hash used for the proof-of-work in hexadecimal format (e.g., "0x0000000000000000000000000000000000000000000000000000000000000000").

10. nonce: The hash of the generated proof-of-work in hexadecimal format (e.g., "0x0000000000000000").

11. number: The block number in hexadecimal format (e.g., "0xf9cc56").

12. parentHash: The hash of the parent block in hexadecimal format (e.g., "0x0000000000f9cc55565a602811f23df6b987fcf4d4c2b3d68ffa28e426f57276").

13. receiptsRoot: The root of the receipts trie of the block in hexadecimal format (e.g., "0x0000000000000000000000000000000000000000000000000000000000000000").

14. sha3Uncles: The SHA3 hash of the uncles data in hexadecimal format (e.g., "0x0000000000000000000000000000000000000000000000000000000000000000").

15. size: The size of the block in bytes in hexadecimal format (e.g., "0x18a").

16. stateRoot: The root of the final state trie of the block in hexadecimal format (e.g., "0x").

17. timestamp: The timestamp for when the block was mined in hexadecimal format (e.g., "0x60b078d0").

18. totalDifficulty: The total difficulty of the chain until this block in hexadecimal format (e.g., "0x0").

19. transactions: An array of transaction hashes included in the block (e.g., ["0x11adfe477e930beb07a1e452dc4b304b89e1b2ae3e8768a2a3e4b4354d007da2"]).

20. transactionsRoot: The root of the transaction trie of the block in hexadecimal format (e.g., "0x08bffbd69ce085d3a84afdc88d10ec171b7a39015558f63c41584667ba9a09f6").

21. uncles: An array of uncle hashes included in the block (e.g., []).

Use Case

Here are some use-cases for the eth_getBlockByHash method:

1. Transaction Verification: This method can be used to verify transactions within a block by retrieving the block data associated with a specific block hash. Developers can use this to ensure that a particular transaction has been included in a block and confirm its status on the blockchain.

2. Blockchain Data Analysis: By fetching block details using the block hash, developers can analyze the block's metadata, such as the timestamp, miner address, and block size. This information is valuable for conducting in-depth blockchain analysis, such as determining network congestion or identifying patterns in block creation.

3. Smart Contract Event Tracking: For applications that interact with smart contracts, eth_getBlockByHash can be used to track events emitted during the execution of transactions within a specific block. This is useful for applications needing to respond to specific events or changes in the state of a smart contract in real-time.

Code for eth_getBlockByHash

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"
headers = {
    "Content-Type": "application/json"
}
payload = {"jsonrpc": "2.0", "method": "eth_getBlockByHash", "params": ["0x0000000000f9cc56243898cbe88685678855e07f51c5af91322c225ce3693868", false], "id": "getblock.io"}

response = requests.post(url, headers=headers, data=json.dumps(payload))

# Check the response and print the result
if response.status_code == 200:
    print("Result:", response.json().get("result"))
else:
    print("Error:", response.status_code, response.text)

Common Errors

Common Errors When using the eth_getBlockByHash RPC Tron method, the following issues may occur:

• Invalid block hash format: Ensure that the block hash is a valid 32-byte hexadecimal string prefixed with '0x'. Double-check the hash for any typographical errors.

• Missing block data: If the block hash does not exist on the blockchain, verify that the hash corresponds to a valid block. It may be necessary to confirm the block's existence on the Tron network.

• Incorrect parameter type: Ensure that the second parameter is a boolean value, either true or false, to specify whether to return full transaction objects. Incorrect types can lead to unexpected errors.

• Network connectivity issues: If the request times out or fails to connect, check your network connection and ensure that the Tron node endpoint is correctly configured and accessible.

Using the eth_getBlockByHash method in Web3 applications allows developers to retrieve specific block data efficiently, facilitating operations like transaction verification and historical data analysis. This method enhances the capability to interact with the Tron blockchain by providing precise and reliable access to block information, which is crucial for building robust decentralized applications.

conclusion

The eth_getBlockByHash method is an Ethereum JSON-RPC API call used to retrieve information about a specific block by its hash. This method provides essential details about the block, such as its transactions and timestamp, which are crucial for developers and users interacting with the Ethereum blockchain. While eth_getBlockByHash is specific to Ethereum, similar RPC methods are employed in other blockchain platforms like Tron to facilitate block data retrieval, underscoring the universal need for efficient blockchain data access.